ME429 Fall 2009 HW3 - d) the position at which the body m...

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Assigned on 19.10.2009 Monday Due date 26.10.2009 Monday, beginning of the lecture ME429 Fall 2009 HW3 You are expected to provide clear explanation of each step in your solution, units, well annotated scaled plots (title, axis labels, units, . .), not random hand sketches, source code attached to your solution if you use a software package. 1) A mass-spring system with Coulomb damping is shown in the figure below. For this system, find a) the decrease in displacement per cycle, b) the maximum velocity, c) the decrease in velocity amplitude per cycle,
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Unformatted text preview: d) the position at which the body m stops. Hint : You may find it useful to plot/sketch the response and work on it. 2) Another mass-spring system with Coulomb damping shown in the figure below is subjected to a harmonic force of frequency 2 Hz. When reached steady state, the mass oscillates with amplitude of 40 mm. Find the amplitude of the harmonic force applied to the mass. m k μ x ( t ) F ( t ) m = 10 kg μ = 0.12 k = 2 kN/m m k μ x ( t ) m = 9 kg μ = 0.15 k = 7 kN/m x o = 25 mm v o = 0 m/s x o...
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This note was uploaded on 03/28/2010 for the course AEROSPACE aero520 taught by Professor Mok during the Spring '10 term at Istanbul Technical University.

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